I tend to agree with you in the main - I use MDR-7506's and a sE Dynacaster as my normal setup - but you absolutely can get comfortable IEMs. But they really aren't cheap. If I need to do something that looks "cans free" at my desk I keep a set of Shure SE215s, which aren't super comfortable but they're tolerable for an hour or two.
To me, reasonably affordable throat mics sound terrible, which is a big factor.
To me, reasonably affordable throat mics sound terrible, which is a big factor.